gnutls_record_send_early_data - Man Page

API function

Synopsis

#include <gnutls/gnutls.h>

ssize_t gnutls_record_send_early_data(gnutls_session_t session, const void * data, size_t data_size);

Arguments

gnutls_session_t session

is a gnutls_session_t type.

const void * data

contains the data to send

size_t data_size

is the length of the data

Description

This function can be used by a client to send data early in the handshake processes when resuming a session.  This is used to implement a zero-roundtrip (0-RTT) mode.  It has the same semantics as gnutls_record_send().

There may be a limit to the amount of data sent as early data.  Use gnutls_record_get_max_early_data_size() to check the limit.  If the limit exceeds, this function returns GNUTLS_E_RECORD_LIMIT_REACHED.

Returns

The number of bytes sent, or a negative error code.  The number of bytes sent might be less than  data_size .  The maximum number of bytes this function can send in a single call depends on the negotiated maximum record size.

Since

3.6.5

Reporting Bugs

Report bugs to <bugs@gnutls.org>.
Home page: https://www.gnutls.org

See Also

The full documentation for gnutls is maintained as a Texinfo manual. If the /usr/share/doc/gnutls/ directory does not contain the HTML form visit

https://www.gnutls.org/manual/

Info

3.7.1 gnutls